<template>
  <div>
    <div id="main" :style="style"/>
  </div>
</template>

<script>
import * as echarts from 'echarts'
export default {
  name: "sunriseChart",
  data(){
    return{
      style:{width:'100%',height:'100%'}
    }
  },
  mounted(){
    this.sunriseChartInit()
  },
  methods:{
    sunriseChartInit(){
      const chartDom = document.getElementById('main')
      const myChart = echarts.init(chartDom)
      let option

      const colors = ['#FFAE57', '#FF7853', '#EA5151', '#CC3F57', '#9A2555']
      const bgColor = '#2E2733'
      const itemStyle = {
        star5: {
          color: colors[0]
        },
        star4: {
          color: colors[1]
        },
        star3: {
          color: colors[2]
        },
        star2: {
          color: colors[3]
        }
      }
      const data = [
        {
          name: '晴天',
          itemStyle: {
            color: colors[1]
          },
          children: [
            {
              name: '空气质量优',
              children: [
                {
                  name: '25℃',
                  children: [
                    {
                      name: '郑州'
                    },
                    {
                      name: '郑州'
                    },
                    {
                      name: '郑州'
                    }
                  ]
                },
                {
                  name: '15℃',
                  children: [
                    {
                      name: '郑州'
                    },
                    {
                      name: '郑州'
                    },
                    {
                      name: '郑州'
                    }
                  ]
                },
                {
                  name: '5℃',
                  children: [
                    {
                      name: '郑州'
                    }
                  ]
                }
              ]
            },
            {
              name: '空气质量差',
              children: [
                {
                  name: '5℃',
                  children: [
                    {
                      name: '郑州'
                    }
                  ]
                },
                {
                  name: '15℃',
                  children: [
                    {
                      name: '郑州'
                    },
                    {
                      name: '郑州'
                    }
                  ]
                },
                {
                  name: '5℃',
                  children: [
                    {
                      name: '郑州'
                    }
                  ]
                }
              ]
            }
          ]
        },
        {
          name: '其他',
          itemStyle: {
            color: colors[2]
          },
          children: [
            {
              name: '有雨',
              children: [
                {
                  name: '25℃',
                  children: [
                    {
                      name: '郑州'
                    }
                  ]
                },
                {
                  name: '15℃',
                  children: [
                    {
                      name: '郑州'
                    },
                    {
                      name: '郑州'
                    }
                  ]
                },
                {
                  name: '5℃',
                  children: [
                    {
                      name: '郑州'
                    }
                  ]
                }
              ]
            },
            {
              name: '扬沙',
              children: [
                {
                  name: '25℃',
                  children: [
                    {
                      name: '痛点'
                    }
                  ]
                },
                {
                  name: '15℃',
                  children: [
                    {
                      name: '郑州'
                    },
                    {
                      name: '郑州'
                    },
                    {
                      name: '郑州'
                    }
                  ]
                },
                {
                  name: '5℃',
                  children: [
                    {
                      name: '郑州'
                    }
                  ]
                }
              ]
            },
            {
              name: '有雪',
              children: [
                {
                  name: '25℃',
                  children: [
                    {
                      name: '郑州'
                    }
                  ]
                },
                {
                  name: '15℃',
                  children: [
                    {
                      name: '郑州'
                    },
                    {
                      name: '郑州'
                    }
                  ]
                },
                {
                  name: '5℃'
                },
                {
                  name: '-5℃',
                  children: [
                    {
                      name: '郑州'
                    }
                  ]
                }
              ]
            },
            {
              name: '雾霾',
              children: [
                {
                  name: '15℃',
                  children: [
                    {
                      name: '郑州'
                    },
                    {
                      name: '郑州'
                    },
                    {
                      name: '郑州'
                    }
                  ]
                }
              ]
            },
            {
              name: '冰雹',
              children: [
                {
                  name: '25℃',
                  children: [
                    {
                      name: '郑州'
                    }
                  ]
                },
                {
                  name: '15℃',
                  children: [
                    {
                      name: '郑州'
                    },
                    {
                      name: '郑州'
                    }
                  ]
                },
                {
                  name: '5℃',
                  children: [
                    {
                      name: '郑州'
                    }
                  ]
                }
              ]
            },
            {
              name: '浮尘',
              children: [
                {
                  name: '15℃',
                  children: [
                    {
                      name: '郑州'
                    }
                  ]
                }
              ]
            },
            {
              name: '阴',
              children: [
                {
                  name: '25℃',
                  children: [
                    {
                      name: '郑州'
                    }
                  ]
                },
                {
                  name: '15℃',
                  children: [
                    {
                      name: '郑州'
                    }
                  ]
                }
              ]
            }
          ]
        }
      ]
      for (let j = 0;j < data.length; ++j) {
        let level1 = data[j].children
        for (let i = 0; i < level1.length; ++i) {
          let block = level1[i].children
          let bookScore = []
          let bookScoreId
          for (let star = 0; star < block.length;++star) {
            let style = (function (name) {
              switch (name) {
                case '25℃':
                  bookScoreId = 0
                  return itemStyle.star5
                case '15℃':
                  bookScoreId = 1
                  return itemStyle.star4
                case '5℃':
                  bookScoreId = 2
                  return itemStyle.star3
                case '-5℃':
                  bookScoreId = 3
                  return itemStyle.star2
              }
            })(block[star].name)
            block[star].label = {
              color: style.color,
              downplay: {
                opacity: 0.5
              }
            }
            if (block[star].children) {
              style = {
                opacity: 1,
                color: style.color
              }
              block[star].children.forEach(function (book) {
                book.value = 1
                book.itemStyle = style
                book.label = {
                  color: style.color
                }
                let value = 1
                if (bookScoreId === 0 || bookScoreId === 3) {
                  value = 5
                }
                if (bookScore[bookScoreId]) {
                  bookScore[bookScoreId].value += value
                } else {
                  bookScore[bookScoreId] = {
                    color: colors[bookScoreId],
                    value: value
                  }
                }
              })
            }
          }
          level1[i].itemStyle = {
            color: data[j].itemStyle.color
          }
        }
      }
      option = {
        title: {
          left: 'center',
          text: '全国各大城市天气情况旭日图',
        },
        backgroundColor: bgColor,
        color: colors,
        series: [
          {
            type: 'sunburst',
            center: ['50%', '48%'],
            data: data,
            sort: function (a, b) {
              if (a.depth === 1) {
                return b.getValue() - a.getValue()
              } else {
                return a.dataIndex - b.dataIndex
              }
            },
            label: {
              rotate: 'radial',
              color: bgColor
            },
            itemStyle: {
              borderColor: bgColor,
              borderWidth: 2
            },
            levels: [
              {},
              {
                r0: 0,
                r: 40,
                label: {
                  rotate: 0
                }
              },
              {
                r0: 40,
                r: 105
              },
              {
                r0: 115,
                r: 140,
                itemStyle: {
                  shadowBlur: 2,
                  shadowColor: colors[2],
                  color: 'transparent'
                },
                label: {
                  rotate: 'tangential',
                  fontSize: 10,
                  color: colors[0]
                }
              },
              {
                r0: 140,
                r: 145,
                itemStyle: {
                  shadowBlur: 80,
                  shadowColor: colors[0]
                },
                label: {
                  position: 'outside',
                  textShadowBlur: 5,
                  textShadowColor: '#333'
                },
                downplay: {
                  label: {
                    opacity: 0.5
                  }
                }
              }
            ]
          }
        ]
      }

      option && myChart.setOption(option)
    }
  }
}
</script>

<style scoped>

</style>
